Transition: Disable animationEnd callback on transition reset.

Fixes rare race condition with modals where animationEnd callback on dimmer could fire before modal's one, calling .transition('reset') on modal right before animationEnd event for it arrives, causing module.complete callback to restore incorect conditions, making modal visible when it shouldn't be, causing next modals to misbehave.
Doc: Added missing forward icon
Doc: Matched icon labels with classes
Doc: Synchronized icons label and class word order
Doc: Removed arrow class from location icon
Doc: Reordered icons existing code
Doc: Typo in attention icon
Doc: Removed missing icons from existing code
Doc: Icon class typos
Doc: Added existing code for basic social icons
Merge pull request #551 from mishak87/patch-2

Doc was missing forward icon in Media Actions
Update CONTRIBUTING.md

Adds grunt to contributing docs
Toying with bower main path to test whether wildcard resolves correctly
prevent close icon style override
Merge pull request #556 from MohammadYounes/message

prevent close icon style override
Update dependencies
Merge branch 'master' of github.com:Semantic-Org/Semantic-UI
Merge branch 'master' of https://github.com/joltmode/Semantic-UI
Merge pull request #532 from dos1/master

Transition: Disable animationEnd callback on transition reset.
Merge branch 'master' of github.com:Semantic-Org/Semantic-UI